公开(公告)号：US3863992A

公开(公告)日：1975-02-04

申请号：US46883574

申请日：1974-05-10

Applicant: BENDIX CORP

Inventor： KURKE EDWARD J ,  BARTHOLOMEW ROY E

IPC: B60T13/38 ,  B60T13/26 ,  B60T13/62 ,  B60T15/12 ,  B60T15/36 ,  B60T13/14

CPC classification number: B60T13/62 ,  B60T13/261 ,  B60T15/12

Abstract: For use in a fluid pressure braking system of the dual circuit type in which one circuit includes a spring applied fluid pressure released actuator, a valve device for controlling the actuator including a first valve member operable to supply fluid pressure from a source to the actuator to move the latter to a brake released position and effective to cut off such supply when the actuator has been released, and being operative to release fluid pressure from the actuator to graduate spring brake application thereof in accordance with fluid pressure supplied the other circuit, the valve device including a second valve member controlled by fluid pressure from said source for preventing operation of the first valve member so long as the fluid pressure is above a predetermined value.

Abstract translation: 用于其中一个电路包括弹簧施加的流体压力释放致动器的双回路类型的流体压力制动系统，用于控制致动器的阀装置，其包括可操作以将来自源的流体压力供应到致动器的第一阀构件， 将后者移动到制动器释放位置，并且当致动器已经被释放时有效地切断这种供应，并且可操作以释放来自致动器的流体压力，以根据提供给另一回路的流体压力对其弹簧制动器的应用进行分级，阀 装置，其包括由所述源的流体压力控制的第二阀构件，以防止第一阀构件的运行，只要流体压力高于预定值即可。